➤ Solve the inequalities.<br> T -3 is less than or equal to 2

AlekseyPX

$x^2+12x+43=0
$

$x= \dfrac{-b+ \sqrt{b^2-4ac} }{2a}, \dfrac{-b- \sqrt{b^2-4ac} }{2a}$

$x= \dfrac{-12+ \sqrt{12^2-4*43} }{2}$ , $\dfrac{-12- \sqrt{12^2-4*43} }{2}$

$x= \dfrac{-12+2 \sqrt{7i} }{2}, \dfrac{-12-2 \sqrt{7i} }{2}$

$x=-6+ \sqrt{7i},-6- \sqrt{7i}$

5 0

3 years ago

Read 2 more answers

Find f(x) = 4x^2+ 9 if f(x) = -2. PLS HELP ME

matrenka [14]

Answer:

25

Step-by-step explanation:

Download pdf

8 0

3 years ago

Write 5(1.25)^-x standard form with steps

gizmo_the_mogwai [7]

Answer:

Ste4

×

y

=

4

×

(

1

4

x

−

5

)

4

y

=

(

4

×

1

4

x

)

−

(

4

×

5

)

4

y

=

(

4

×

1

4

x

)

−

20

4

y

=

1

x

−

20

Next step is to move the

x

term to the left side of the equation by subtracting

1

x

from each side of the equation:

−

1

x

+

4

y

=

−

1

x

+

1

x

−

20

−

1

x

+

4

y

=

−

0

−

20

−

1

x

+

4

y

=

−

20

Now, to make the coefficient of

x

positive we need to multiply both sides of the equation by

−

1

−

1

×

(

−

1

x

+

4

y

)

=

−

1

×

−

20

(

−

1

×

−

1

x

)

+

(

−

1

×

4

y

)

=

20

1

x

−

4

y

=

20

or

1

x

−

4

y

=

20p-by-step explanation:

4 0

3 years ago

Simplify the expression: -3(m + 6) –5m + 9(2m –16)

slava [35]

Answer:10m-162 simplifying the expression

Step-by-step explanation:

First you remove the parenthesis, and you collect all the terms to give u and answer.

6 0

3 years ago

There are 46 children going to a party. 18 will wear black costumes, 12 will wear orange costumes and some will wear both black

Juliette [100K]

The number of children who wore both orange and black will be 8.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

There are 46 children going to a party. 18 will wear black costumes, 12 will wear orange costumes and some will wear both black and orange.

Then the number of children who wear costumes and black & orange. Then we have

⇒ 46 - 18 - 12

⇒ 46 - 30

⇒ 16

Half of the guests will go in costumes that are neither black nor orange. Then we have

⇒ 16 / 2

⇒ 8

Then the number of the children who orange and black will be

⇒ 16 - 8

⇒ 8

The number of children who wore both orange and black will be 8.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ2

3 0

2 years ago

➤ Solve the inequalities. T -3 is less than or equal to 2